replace values from datagridview cells

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2.00/5 (2 votes)

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Hi developer's
I want replace regular expressions from DataGridView all columns and rows, for that I am using a regex, but its provide an error.

please check this code and solve the problem its my request.

private void button2_Click(object sender, EventArgs e)
 {
   char comma = ',';
   char slash = '/';
   char colon = '"';
   string Blank = "";

   try
    {
      foreach(DataGridViewRow datarow in dataGridView1.Rows)
       {
        foreach(DataGridViewCell datacol in dataGridView1.)
          {
             datarow[datacol] = System.Text.RegularExpressions.Regex.Replace(comma.ToString(),slash.ToString());
                   datarow[datacol] = System.Text.RegularExpressions.Regex.Replace(colon.ToString(),Blank.ToString());
          }
       }
    }
   catch(System.Exception ex)
    {
       MessageBox.Show(ex.Message);
     }
 }

Posted 8-Dec-10 20:06pm

vishu1999a

Updated 8-Dec-10 20:16pm

TweakBird

v2

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Comments

TweakBird 9-Dec-10 2:16am

code blocks fixed.

Dave Kreskowiak 9-Dec-10 10:20am

You forgot to post the most important piece of information to diagnose your problem. What's the error message??

Dr.Walt Fair, PE 10-Dec-10 19:55pm

Do you really mean colon = '"'? Normally a colon should be ':'

As Dave asked, what's the error message and where does it happen?

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Rick Shaub · Answer 1 · 2011-03-21T05:37:00

There are several syntax errors with your posted code, which I attempted to correct based on assumptions. Also, as noted in the comments, a colon is normally this character: ':'.

One thing that's important to note is that when iterating over a collection, you'll get an exception if you change any members in the collection. Therefore, you'll want to use a for loop to iterate over the cells in the DataGridView if you want to edit the indivdual cells values.

See if the code below works for you.

private void button2_Click(object sender, EventArgs e)
{
    char comma = ',';
    char slash = '/';
    char colon = '"';
    string Blank = "";
    try
    {
        for (int row = 0; row < dataGridView1.Rows.Count;row++ )
        {
            for (int column = 0; column < dataGridView1.Columns.Count; column++)
            {
                object value = dataGridView1[column, row].Value;
                if (value != null && value.GetType() == typeof(string))
                {
                    string newValue = (string)value;
                    newValue = newValue.Replace(comma,slash);
                    newValue = newValue.Replace(colon.ToString(),Blank);
                    dataGridView1[column, row].Value = newValue;
                }
            }
        }
    }
    catch(System.Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}